This is a note to let you know that I've just added the patch titled KVM: x86: properly restore LVT0 to the 4.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: kvm-x86-properly-restore-lvt0.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From db1385624c686fe99fe2d1b61a36e1537b915d08 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@xxxxxxxxxx> Date: Tue, 30 Jun 2015 22:19:17 +0200 Subject: KVM: x86: properly restore LVT0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@xxxxxxxxxx> commit db1385624c686fe99fe2d1b61a36e1537b915d08 upstream. Legacy NMI watchdog didn't work after migration/resume, because vapics_in_nmi_mode was left at 0. Signed-off-by: Radim Krčmář <rkrcmar@xxxxxxxxxx> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/kvm/lapic.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1808,6 +1808,7 @@ void kvm_apic_post_state_restore(struct apic_update_ppr(apic); hrtimer_cancel(&apic->lapic_timer.timer); apic_update_lvtt(apic); + apic_manage_nmi_watchdog(apic, kvm_apic_get_reg(apic, APIC_LVT0)); update_divide_count(apic); start_apic_timer(apic); apic->irr_pending = true; Patches currently in stable-queue which might be from rkrcmar@xxxxxxxxxx are queue-4.1/kvm-x86-properly-restore-lvt0.patch queue-4.1/kvm-x86-make-vapics_in_nmi_mode-atomic.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html